58results about How to "Make the transition" patented technology

The invention relates to a tensioning device (8) for an endless drive element, in particular a timing chain (5) of an internal combustion engine, comprising a housing (10), a tensioning piston (11) which can be movably guided in the housing (10), and a pressure chamber (19) for a hydraulic fluid, formed between the housing (10) and the tensioning piston (11), wherein the tensioning piston (11) has a ventilation opening (15) and a ventilation channel (23, 16.1, 16.2, 16.3, 22.1, 22.2, 22.3) is provided which is disposed between the pressure chamber (19) and the ventilation opening (15) and which is formed by the assembly of at least two ventilation elements. In one ventilation element, in the surface (E) which contacts the second ventilation element, sub-regions of the ventilation channel which are separated from one another are formed by indented groove sections (16.1, 16.2, 16.3, 22.1, 22.2, 22.3), which are connected to one another by transitional grooves (22.1, 22.2, 22.3) formed in the second ventilation element in the surface which contacts the first ventilation element in such a way that a main part of the flow cross-section of the ventilation channel is disposed with some sections on one side and some sections on the other side of a plane spanned by the contact surfaces. The invention further relates to a corresponding traction drive (1) having such a tensioning device (8).

The invention discloses a manufacturing method for a composite steel column of a transition section of a tower crown of a super high-rise building. The composite steel column comprises a steel columnwhich is vertically arranged, upper brackets and lower brackets, wherein the upper brackets and the lower brackets are arranged on the steel column at intervals, and the steel column is sequentially composed of an orthogonal H-shaped steel column section, a connecting H-shaped steel column section, an oblique-crossing H-shaped steel column section and a rhombic steel column section from bottom totop; center lines of webs of the orthogonal H-shaped steel column section, the connecting H-shaped steel column section and the oblique-crossing H-shaped steel column section are located in the same straight line; the lower brackets are arranged on the connecting H-shaped steel column section; and a left flange plate and a right flange plate are correspondingly arranged between an upper flange plate and a lower flange plate of the upper end of the oblique-crossing H-shaped steel column section, the two sides of the left flange plate and the right flange plate are correspondingly and fixedly connected with the edge of the lower flange plate and the edge of the corresponding upper flange plate, so as to close the left and right sides of the upper flange plate and the lower flange plate, andan inclination angle of the rhombic steel column section corresponds to that of the tower crown. According to the manufactured composite steel column, the transition from the main structure of a towerbuilding to the tower crown structure can be effectively achieved.

The invention discloses an erection girder body suitable for a sea and air across amphibious unmanned aerial vehicle. The body comprises a first supporting rod, a second supporting rod, a third supporting rod, a fourth supporting rod, a first fixing plate, a second fixing plate, a third fixing plate, an erection girder shell, a supporting rod connecting disc and an erection girder outer sleeve, wherein the first supporting rod, the second supporting rod, the third supporting rod and the fourth supporting rod are supported through the first fixing plate and the second fixing plate which are arranged in parallel; the third fixing plate is arranged between the first fixing plate and the second fixing plate; the erection girder shell and the supporting rod connecting disc are connected through matching between the screw and the nut assembled in a lug; and one end of the erection girder outer sleeve is connected to the front end of the erection girder shell. The body has the rod piece structure, so that a sealing outer sleeve is not independently designed on the outer side, and when the unmanned aerial vehicle enters a water environment, gaps among various rod pieces can be rapidly filled with water, so that the average density of the unmanned aerial vehicle body is close to the density of water in a short time, and transition of the unmanned aerial vehicle from an air environment to a water environment is realized.

The invention provides a plastic bag foreign matter continuous automatic sorting device for kitchen garbage, and belongs to the field of waste recycling. The device comprises a rack, a feeding device,a pre-cutting device, an upper material bin, a lower material bin, a stirring and sorting device, a conveying device, a falling-down object taking device, a collecting bin and a driving and control system. The plastic bag foreign matter continuous automatic sorting device for the kitchen garbage has the beneficial effects that sorting of plastic bags mixed in the kitchen garbage can be automatically completed, compared with existing manual sorting, the labor cost can be reduced, the working efficiency can be improved, the quality of recycled products can be effectively improved, generation ofharmful substances can be reduced, and the device is suitable for the pretreatment stage of kitchen garbage reutilization.

The invention relates to a solenoid valve comprising an armature (1) which is arranged in the region of at least one magnetic coil. At least one radial recess (6, 10) extending essentially in the radial direction, traversing at least in parts the front surface (2) of the armature (1) is provided. The invention also relates to a driver assistance device comprising said type of solenoid valve.

The invention provides a special fixture and method for mounting a core pipe of an OVD sintering quartz furnace. The fixture comprises a connection top plate and a hoisting component and an adjusting component arranged on the connection top plate, wherein the hoisting component comprises a left ring device, a middle ring device and a right ring device arranged on the connection top plate in an equal interval; the adjusting component comprises multiple adjusting devices uniformly arranged along the outer circumference of the connection top plate; the adjusting device comprises a radial adjusting plate mounted on the connection top plate through a first connector and an axial adjusting plate mounted on the radial adjusting plate through a second connector; a connection top plate buffer pad is arranged on the lower side of the connection top plate; and an axial adjusting plate buffer pad is arranged on the axial adjusting plate. The fixture provided by the invention has an adjustment function along the axial and radial directions of the core pipe of the quartz furnace; and since a buffer pad is fixed on the part in contact with the core pipe of the quartz furnace, direct contact between metal and the core pipe of the quartz furnace is avoided, and the core pipe of the quartz furnace is prevented from cracking under impact force in a hoisting process.

The present invention proposes an SDN-based Ethernet IP packet encapsulation method and network isolation and DHCP implementation method, which solves the above-mentioned technical problems such as complex forwarding process and reduced transmission efficiency caused by packet layer 2 header encapsulation. Step 1, the physical layer of the device obtains physical signals from the transmission medium according to the frame gap and the guide frame, and converts the physical signals into bits, and sends them to the data link layer; Step 2, the data link layer performs MAC address identification and addressing; Step 3, analyze the protocol stack to identify the message; Step 4, transfer the route to the data link layer to perform other processing procedures except Ethernet encapsulation and MAC addressing, according to The message header format is passed to the physical layer for processing; step 5, the physical layer converts the bits of the message data frame into photoelectric signals according to the original method and forwards them.

The invention relates to a human-induced load testing system based on a force measurement plate and belongs to the field of biomechanics. The human-induced load testing system comprises a detection system, a pedestrian path and a data processing system. The detection system is the force measurement plate. The pedestrian path comprises a leading-in channel, a testing platform, a leading-out channel and counter weights. The leading-in channel and the leading-out channel are located on two sides of the testing platform, a leading-in plate, a test plate, a bearing plate and a leading-out plate are required to be located on the same horizontal plane. The counter weights are symmetrically arranged on two sides of the bearing plate. The force measurement plate is put under a base plate central point. The data processing system acquires data through the detection system. The human-induced load testing system closely re-shows and tests various advancing modes (walking, stepping, running, jumping and the like) of people on a horizontal plane in a natural state mode.

The invention discloses a multi-axis coupling motion singularity control method for a continuous load simulator. The method comprises the following steps: S1, establishing an axis motion mathematicalrelationship of the simulator; S2, decoupling the main arm from other rotating shafts in the Jacobian of attitude control; S3, quantifying the singular degree of the current result; S4, carrying out quick solving on the quantification of the singular degree; and S5, after a singular degree quantification result is solved, designing a singular control module. According to the method, singular pointtransition is carried out under the condition that the shaft motion stroke is fully utilized; and the sudden change of the vicinity of the singular point due to the limitation of the mechanical rangeof the shaft is avoided in a mode of reducing the proportion of the control instruction, so that the stability and fidelity of flight simulation are improved.

A long-service-life cement concrete bridge multi-medium waterproof composite layer is characterized in that a waterproof bonding composite layer is sequentially composed of a bi-component adhesive layer and a rubber modified asphalt layer outwards along a bridge floor, single-particle-size broken stones are inserted between the bi-component adhesive layer and the rubber modified asphalt layer in a penetrating mode, the bi-component adhesive layer is formed by bi-component bonding materials, and the rubber modified asphalt layer is formed by the bi-component bonding materials. The rubber modified asphalt layer is formed by rubber modified asphalt, the rubber modified asphalt layer, the bi-component bonding material, the rubber modified asphalt and the single-particle-size gravel are constructed synchronously, and according to the spreading amount, the content of the bi-component bonding material is 1.0-1.5 kg / m < 2 >, the content of the rubber modified asphalt is 1.6-2.0 kg / m < 2 >, and the coverage rate of the single-particle-size gravel is 60-70%. The waterproof composite layer material disclosed by the invention has outstanding waterproofness, durability, bonding strength and shearing strength, and can be well applied to bridge deck pavement of a cement concrete bridge, so that the service life of the concrete bridge deck is prolonged.

The invention discloses a method for quick transition of finite element three-dimensional model grids, relates to a method for finite element model grid transition and aims at solving the problem that an existing grid transition method is only limited to a single-direction transition means, namely, in the single direction, the grid size proportion of a far end and a short end is 2 or 3 and is used as the transition proportion to conduct multiple times of grid transition, and the means can not realize the finite element simulation of large components. The method comprises the steps of dividing a component into an important area, a transition area and a non-important area according to the size of calculation data change gradient of different parts of the component; dividing the important area into a plurality of grids in a shape of a cube or a cuboid, wherein grids in the important area A should be dense; conducting transition grid division on the transition area; dividing the non-important area into a plurality of grids in a shape of a cube or a cuboid, wherein grids in the non-important area should be sparse. Consequently, the grid division of the whole component is finished. The method is used for grid division of finite element model simulation modeling of a large or super large component.

The invention discloses a boarding bridge lifting device comprising a beam and an inner guide pipe, wherein a locating hole is relatively formed in the beam; the inner guide pipe is inserted into the beam via the locating hole; the inner guide pipe is welded with the beam; a plunger type hydraulic cylinder is arranged in the inner guide pipe; an outer guide pipe capable of sliding up and down is sleeved on the inner guide pipe; the outer guide pipe is connected with the plunger type hydraulic cylinder by an upper fixing seat; the hydraulic cylinder is connected with the beam by a lower fixing seat; a hydraulic power device is arranged on the beam; and the plunger type hydraulic cylinder is driven by the hydraulic power device.